Patent GB-459837-A (GB)
Title: Improvements in or relating to typographic moulds
IPC: B41B11/00
Filed: 1936-08-13
Abstract: 459,837. Typographic moulds. MONOTYPE CORPORATION, Ltd., 43, Fetter Lane, London, and TIPTON, J. E., 14, Dunraven Avenue, Salfords, Horley, Surrev. Aug. 13, 1936, No. 22268. [Classes 100 (ii) and 100 (iii)] A typographic mould for producing type bodies with characters or symbols in Script and Italic styles has a variable rectangular shank-producing cavity, a mould-dimensioning blade having a formative face on its forward end, and a movable cross block forming one wall of the mould and provided with a formative face complementary to that on the mould blade, the arrangement being such that the two formative faces serve to produce on the upper end of the shank of the type body a platform or a portion inclined at an angle to the shank. The mould comprises a frame having a base A, Fig. 1, and upstanding wall A<1>, and an intermediate plate A<2> (not shown) on which are mounted two side blocks B, B<1>. Two superposed mould-dimensioning blades C, D, Fig. 8, are adapted to slide between the blocks to co-operate with a reciprocating cross block E arranged between the front faces of the blocks B, B<1> and a presser plate A<3> mounted within the wall A<1>. The side X<1>, Fig. 15, of the shank of the type body is cast against the face of the block B, the side X<2> against the block B<1>, the side X<3> against the cross block E, and the remaining face X4 against the straight forward face D<2> of the lower mould blade D. The upper or angularly disposed portion of the shank between the lines x<1> and x<2> is produced between the specially shaped parts on the forward face of the blade C and extension E<1> on the cross block E, together with the straight faces of the two blocks B, B<1>. This portion of the shank has diametrically opposite triangular brackets X<5> and X<6>, Fig. 16, and bevels or recesses X7 and X<8>. When the types are assembled, the brackets X<5> and X<6> on one type nest in the recesses X<8> and X<7> on an adjacent type, irrespective of the characters on them. The platform X<9> of the type is produced in the matrix. The mould blades C, D are held down by a plate H. In their rearward position, the rear end d of the blade D bears against a shoulder c on the blade C. The blade D has an opening D<1> through which is passed a rod G<1> mounted in a fork G, and the blade C has an elongated opening C<1> through which the rod G<1> also passes. The blades are retracted by the fork G to dimension the mould. When a cast has been made, the block E is moved to the right by a type carrier F to open one side of the casting cavity and allow the type to be ejected from the mould and transferred into the carrier by the blade D. The carrier F has a nose F<4> which engages a nose e on the block E, and is cam-operated. As the carrier advances, a jaw F<1> thereon is opened by a stop K, and the blade D is then advanced relatively to the blade C to push the type on to a platform F<2> into the carrier, and between the jaw F<1> and a stationary wall F<3> thereof. A locking-device for the cross-block E comprises a block L mounted on one end of a lever L<1> which is pivoted at l. The tail L<2> of the lever L<1> has a slot engaged by one end of a lever L<3> pivoted at l<1>. The other end of the lever L<3> engages a bevel on the rear of the blade D, so that when the blade is moved back to dimension the mould, the end of the lever L<3> is raised, and consequently the block L of the lever L<1> is raised. If, however, the blades C, D are not moved rearward to the proper extent, or when the blades have been advanced, then the block L remains or is lowered to be interposed between the end of the mould frame and in the path of an arm E<8> on the cross block E. The mould is dimensioned by a stop adapted to be engaged by a rod J mounted loosely in the fork G between the stop and the rear end of the blade C.